@article{1028998431,
author = {Putnam, C. R.},
title = {Group commutators of bounded operators in Hilbert space.},
journal = {Michigan Math. J.},
volume = {7},
number = {1},
year = {1960},
pages = { 229-232},
language = {en},
url = {http://dml.mathdoc.fr/item/1028998431}
}
Putnam, C. R. Group commutators of bounded operators in Hilbert space.. Michigan Math. J., Tome 7 (1960) no. 1, pp. 229-232. http://gdmltest.u-ga.fr/item/1028998431/